forked from basho/riak-go-client
/
queue_test.go
80 lines (73 loc) · 1.69 KB
/
queue_test.go
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
package riak
import (
"sync"
"testing"
)
func TestReadFromEmptyQueue(t *testing.T) {
q := newQueue(1)
v, err := q.dequeue()
if err != nil {
t.Error("expected nil error when reading from empty queue")
}
if v != nil {
t.Error("expected nil value when reading from empty queue")
}
if expected, actual := uint16(0), q.count(); expected != actual {
t.Errorf("expected %v, got %v", expected, actual)
}
}
func TestIterateEmptyQueue(t *testing.T) {
count := uint16(128)
q := newQueue(count)
executed := false
var f = func(val interface{}) (bool, bool) {
executed = true
if val == nil {
return true, true
} else {
return false, true
}
}
err := q.iterate(f)
if err != nil {
t.Error("expected nil error when iterating queue")
}
if expected, actual := false, executed; expected != actual {
t.Errorf("expected %v, got %v", expected, actual)
}
if expected, actual := uint16(0), q.count(); expected != actual {
t.Errorf("expected %v, got %v", expected, actual)
}
}
func TestConcurrentIterateQueue(t *testing.T) {
count := uint16(2)
wg := &sync.WaitGroup{}
q := newQueue(count + 2) // make room for 666
for i := uint16(0); i < count; i++ {
q.enqueue(i)
}
wg_inner := &sync.WaitGroup{}
for i := uint16(0); i < count; i++ {
wg.Add(1)
go func() {
var f = func(val interface{}) (bool, bool) {
wg_inner.Add(1)
go func() {
q.enqueue(666)
wg_inner.Done()
}()
return false, true
}
err := q.iterate(f)
if err != nil {
t.Error("expected nil error when iterating queue")
}
wg.Done()
}()
}
wg.Wait()
wg_inner.Wait()
if expected, actual := uint16(4), q.count(); expected != actual {
t.Errorf("expected %v, got %v", expected, actual)
}
}